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Re: TCP checksum error

On Mon, Mar 30, 2009 at 11:52:53AM +1300, malcolm mcqueen wrote:
> I have been having problems with network connections. Dropping out, and  
> slow.
> On investigation using wireshark, I see I have many bad packets with  
> incorrect checksums.

I remember a time when I was trying to track a network problem down and
I had bad checksums, it worked out the bad checksums was being caused by
an application injecting packets into the stack, and it was a reading
error by wireshark, I found if I wiresharked from a different box the
checksum was okay.  I also found if I updated my driver (network ) to a
newer version that also fixed problems as well (the problem was with


> These may not be the source of my problem but I wish to get to the  
> bottom of this first.
> I am running Lenny amd on a Dell E520.
> The problems occur on output for various types.
> Some I can see at present are:
> ssh encrypted response packet, other ssh packets seem OK
> HTTP GET , others seem OK
> I have tried another network card with the same result and have run  
> memtest86.
> Malcolm McQueen

"And so, in my State of the -- my State of the Union -- or state -- my speech to the nation, whatever you want to call it, speech to the nation -- I asked Americans to give 4,000 years -- 4,000 hours over the next -- the rest of your life -- of service to America."

	- George W. Bush
Bridgeport, Conn.

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